If P and ` Q^(2) ` are in direct proportion. If Q doubles then P becomes _______ .

If P and ` Q^(2) ` are in direct proportion. If Q doubles then P becomes _______ .
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If P and ` Q^(2) ` are in direct proportion. If Q doubles then P becomes _______ .
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For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cp n , then what is the value of 'n' for this chemical reaction? (A) 0 (B) 1 (C) 2 (D) 3

Description : For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of 'P' is doubled. If the reaction rate is proportional to Cp n , then what is the value of 'n' for this chemical reaction? (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (B) 1

When x and y are in indirect proportion and if y doubles then x becomes_______

Description : When x and y are in indirect proportion and if y doubles then x becomes_______

Last Answer : When x and y are in indirect proportion and if y doubles then x becomes_______

Three pipes P, Q and R can fill a tank from empty to full in 40 minutes, 15 minutes, and 30 minutes respectively. When the tank is empty, all the three pipes are opened. P, Q and R discharge chemical solutions X, Y and Z respectively. What is the proportion of the solution Y in the liquid in the tank after 5 minutes? a) 8 / 15 b) 7 / 15 c) 8 / 17 d) 6 / 13 e) 8 / 13

Description : Three pipes P, Q and R can fill a tank from empty to full in 40 minutes, 15 minutes, and 30 minutes respectively. When the tank is empty, all the three pipes are opened. P, Q and R discharge chemical solutions X, Y and Z respectively. ... 5 minutes? a) 8 / 15 b) 7 / 15 c) 8 / 17 d) 6 / 13 e) 8 / 13

Last Answer : a Part of the tank filled by pipe P in 1 minute = 1 / 40 Part of the tank filled by pipe Q in 1 minute = 1 / 15 Part of the tank filled by pipe R in 1 minute = 1/ 30 Here we have to find the proportion of ... together in 5 minute = 5 1/8 = 5/ 8 Required proportion = (1/3) / ( 5/8) = 8 / 15

P and Q started a partnership business investing some amount in the ratio of 3:5. R joined them after six months with an amount equal to that of Q. In what proportion should the profit at the end of one year be distributed among P, Qand R? A.5 : 8 : 10 B.6 : 10 : 5 C.6 : 4 : 10 D.10 : 6 : 3

Description : P and Q started a partnership business investing some amount in the ratio of 3:5. R joined them after six months with an amount equal to that of Q. In what proportion should the profit at the end of one year be distributed among P, Qand R? A.5 : 8 : 10 B.6 : 10 : 5 C.6 : 4 : 10 D.10 : 6 : 3

Last Answer : Answer – B (6 : 10 : 5) Explanation – Let the initial investments of P and Q be 3a amd 5a. P : Q : R = (3a x 12) : (5a x 12) : (5a x 6) = 36 : 60 : 30 = 6 : 10 : 5.

Three friends started a Company, let there names are P, Qand R. What profit Q will get, if, 1. R invested Rs. 4000 for nine months, his profit was 3/2 times that of Q's and his investment was four times that of P. 2. P and Q invested for one year in the proportion 1 : 2 respectively. 3. The three together got Rs. 500 as profit at the year end. A) Only 1 and 3 B) Only 1 and 2 C) All 1, 2 and 3 D) None of above

Description : Three friends started a Company, let there names are P, Qand R. What profit Q will get, if, 1. R invested Rs. 4000 for nine months, his profit was 3/2 times that of Q's and his investment was four times that of P. 2. ... year end. A) Only 1 and 3 B) Only 1 and 2 C) All 1, 2 and 3 D) None of above

Last Answer : Answer: C) 1 and 2 will give : R = Rs. (4000 x 9) for 1 year = Rs. 36000 for 1 year. P = Rs. (1/4 * 4000 * 12 ) for 1 year = Rs 12000 for 1 year Q = Rs 24000 for one year R:P:Q = ... Profit = 500 Now from the ratio and total profit we can get Share of R. R share will be = 500 * 2/6 = 166.66

The average weight of M,N and O is 168 kg. If P joins the group, the average weight of the group becomes 160 kg. If another man Q who weighs 6kg more than P replaces M, then the average of N,O,P and Qbecomes158 kg. What is the weight of M? A) 175 B) 140 C) 145 D) 150

Description : The average weight of M,N and O is 168 kg. If P joins the group, the average weight of the group becomes 160 kg. If another man Q who weighs 6kg more than P replaces M, then the average of N,O,P and Qbecomes158 kg. What is the weight of M? A) 175 B) 140 C) 145 D) 150 

Last Answer : D) M+N+O =168 * 3 =504 M+N+O+P=160*4=640……(1) P=136 kg and Q =142 kg N+O+P+Q =158*4 =632 N+O+P =632-142 =490…..(2) from 1 & 2, M=640-490 =150kg

If `a^(p/q)=root(q)(k)`, then `k=` _______.

Description : If `a^(p/q)=root(q)(k)`, then `k=` _______.

Last Answer : If `a^(p/q)=root(q)(k)`, then `k=` _______.

A container contains a mixture of two liquids P and Q in the ratio 7 : 5. When 9 litres of mixture are drawn off and the container is filled with Q, the ratio of P and Q becomes 7 : 9. How many litres of liquid P was contained in the container initially? a) 12 b) 21 c) 93 d)17 e) None

Description : A container contains a mixture of two liquids P and Q in the ratio 7 : 5. When 9 litres of mixture are drawn off and the container is filled with Q, the ratio of P and Q becomes 7 : 9. How many litres of liquid P was contained in the container initially? a) 12 b) 21 c) 93 d)17 e) None 

Last Answer : B Let initial quantity of P in the container be 7x and initial quantity of Q in the container be 5x Now 9 litres of mixture is drawn off from the container. Quantity of P in 9 litres of the mixture drawn off ... = 7 : 9 x=16* 21/4*28 Litres of P contained in the container initially =7x = 21

In 1 kg mixture of sand and iron, 20% is iron. How much sand should be added so that the proportion of iron becomes 10%? a) 1 kg b) 200 gms c) 800 gms d) 1.8 kg e) None of these

Description : In 1 kg mixture of sand and iron, 20% is iron. How much sand should be added so that the proportion of iron becomes 10%? a) 1 kg b) 200 gms c) 800 gms d) 1.8 kg e) None of these

Last Answer : Answer: A If we add x grams of sand, the total amount would be 1,000 + x grams of mixture and we need 200 grams of iron to be 10% of that: 0.1(1,000 + x) = 200 --> x = 1,000. 

In 1 kg mixture of iron and carbon, 40% is carbon. How much iron should be added so that the proportion of carbon becomes 20% a)1.5kg b)2kg c)3kg d)5kg

Description :  In 1 kg mixture of iron and carbon, 40% is carbon. How much iron should be added so that the proportion of carbon becomes 20% a)1.5kg b)2kg c)3kg d)5kg e)1kg

Last Answer : E Quantity of the mixture : Quantity of iron = 20 : 20 = 1 : 1 Given that quantity of the mixture = 1 kg Hence quantity of iron to be added = 1 kg

In the case of parallelization, Amdahl's law states that if P is the proportion of a program that can be made parallel and (1-P) is the proportion that cannot be parallelized, then the maximum speed-up that can be achieved by using N processors is: (A) 1/((1-P)+N.P) (B) 1/((N-1)P+P) (C) 1/((1-P)+P/N) (D) 1/(P+(1-P)/N)

Description : In the case of parallelization, Amdahl's law states that if P is the proportion of a program that can be made parallel and (1-P) is the proportion that cannot be parallelized, then the maximum speed-up that can be achieved by using N processors is ... ((N-1)P+P) (C) 1/((1-P)+P/N) (D) 1/(P+(1-P)/N)

Last Answer : (C) 1/((1-P)+P/N)

If the length of the shank is doubled, then strain energy absorbed by shank a) Doubles b) Remains same c) Increases 4 time d) Become half

Description : If the length of the shank is doubled, then strain energy absorbed by shank a) Doubles b) Remains same c) Increases 4 time d) Become half

Last Answer : a) Doubles

The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CA n , then what is the value of n for this reaction? (A) 0 (B) 0.5 (C) 1 (D) 2

Description : The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CA n , then what is the value of n for this reaction? (A) 0 (B) 0.5 (C) 1 (D) 2

Last Answer : (C) 1

In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is? a) 5 kmph b) 6 kmph c) 6.25 kmph d) 7.5 kmph e) None of these

Description : In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is? a) 5 kmph b) 6 kmph c) 6.25 kmph d) 7.5 kmph e) None of these

Last Answer : Let Abhay's speed be x km/hr. Then, 30/x-30/2x= 3 6x = 30 x = 5 km/hr. Answer: a)

If the cost price of shoes doubles, then the loss gets tripled of what it was initially. The initial loss % was ?

Description : If the cost price of shoes doubles, then the loss gets tripled of what it was initially. The initial loss % was ?

Last Answer : Let the cost price be y and selling price be z.  Loss = y-z  When the cost price doubles, the loss gets tripled.  So it becomes like this, 2y – z = 3(y-z)  y=2z  Loss % = (2z-z/2z*100) = 50 %

If S is the potential infiltration, P is rainfall in cm in a drainage of a soil with fair pasture cover, the direct run off Q in cm is given by (A) Q = (P - 0.1 S)²/(P + 0.4 S) (B) Q = (P - 0.2 S)²/(P + 0.6 S) (C) Q = (P - 0.2 S)²/(P + 0.8 S) (D) Q = (P - 0.2 S)²/(P + 0.2 S)

Description : If S is the potential infiltration, P is rainfall in cm in a drainage of a soil with fair pasture cover, the direct run off Q in cm is given by (A) Q = (P - 0.1 S)²/(P + 0.4 S) (B) Q = (P - 0.2 S)²/(P + 0.6 S) (C) Q = (P - 0.2 S)²/(P + 0.8 S) (D) Q = (P - 0.2 S)²/(P + 0.2 S)

Last Answer : Answer: Option C

What type of line shows a direct proportion on a graph?

Description : What type of line shows a direct proportion on a graph?

Last Answer : Need answer

What is the result of doubling one variable for two in a direct proportion?

Description : What is the result of doubling one variable for two in a direct proportion?

Last Answer : Need answer

Definition: In a direct proportion y = kx, the number k is called the constant of ______.?

Description : Definition: In a direct proportion y = kx, the number k is called the constant of ______.?

Last Answer : proportion

When the current in a power transmission line is increased, the power loss _____________. A. increases as the square of the current B. decreases as the square root of the current C. remains the same, as it is independent of current flow D. increases in direct proportion as the current

Description : When the current in a power transmission line is increased, the power loss _____________. A. increases as the square of the current B. decreases as the square root of the current C. remains the same, as it is independent of current flow D. increases in direct proportion as the current

Last Answer : Answer: A

In case of imprisonment for non-payment of fine, if a part of the fine is paid, such sentence (a) Shall be reduced proportionately (b) Shall not be reduced in direct proportion to the fine paid (c) Shall be reduced but subject to the discretion of the court as to the quantum of reduction (d) All of the above.

Description : In case of imprisonment for non-payment of fine, if a part of the fine is paid, such  sentence (a) Shall be reduced proportionately (b) Shall not be reduced in direct proportion to the fine paid ( ... subject to the discretion of the court as to the quantum of  reduction (d) All of the above.

Last Answer : (a) Shall be reduced proportionately

Annual bearing apples differentiate much greater proportion of their flowers on _______: a. Spurs b. Shoots c. Leaf axils d. Main stem

Description : Annual bearing apples differentiate much greater proportion of their flowers on _______: a. Spurs b. Shoots c. Leaf axils d. Main stem

Last Answer : Shoots

Is there a wall in your house that doubles as a note-pad?

Description : Is there a wall in your house that doubles as a note-pad?

Last Answer : I use my hand.

Is it true that using marijuana doubles the effective dose of all your medications?

Description : Is it true that using marijuana doubles the effective dose of all your medications?

Last Answer : No.

Why wouldn't a pyramid scheme where the price doubles every year work?

Description : Why wouldn't a pyramid scheme where the price doubles every year work?

Last Answer : Ehh thought about it enough figured out why it would eventually fail.

A man has 3 wife's, each one has 3 houses, in one of houses for every wife his mother in law lives. He goes to first house with money, mother doubles it, he leaves half, he goes to second wife, mother doubles it again, he leaves the same amount as to first wife, he goes to third house and mother doubles it again, he leaves the same amount as to first one,but goes home with no money. How much money did he have? 2 wife are sister and they have a same mother? -Riddles

Description : A man has 3 wife's, each one has 3 houses, in one of houses for every wife his mother in law lives. He goes to first house with money, mother doubles it, he leaves half, he goes to second wife, ... with no money. How much money did he have? 2 wife are sister and they have a same mother? -Riddles

Last Answer : This answer was deleted by moderators

Lily is a lilypad in a small pond. Lilly doubles her size each day, On the 20th day she covers the whole pond. On what day was Lily half the size of the pond? -Riddles

Description : Lily is a lilypad in a small pond. Lilly doubles her size each day, On the 20th day she covers the whole pond. On what day was Lily half the size of the pond? -Riddles

Last Answer : Day 19, it's not 10 because on day 20 she doubled from day 19, so 19 must be half the size of the pond.

In how many ways can a mixed doubles game be arranged from amongst 8 married couples if no husband and wife play in the same game? -Maths 9th

Description : In how many ways can a mixed doubles game be arranged from amongst 8 married couples if no husband and wife play in the same game? -Maths 9th

Last Answer : For mixed doubles, we have 2 men and 2 women. 2 men out of 9 can be selected in 9C8 ways Out of 9 women, 2 will be there wife 30 only 7 are remaining for selecting 2 Now out of them 2 possible combinations can be made. So, ... =3024 Hence the answer is 3024.

According to the ideal gas law, what happens to the volume of a gas when the pressure doubles (all else held constant)?

Description : According to the ideal gas law, what happens to the volume of a gas when the pressure doubles (all else held constant)?

Last Answer : The volume is halved(Explanation): this is boyle's law PV=PV. In order to keep this equation true, if one variable (pressure in this case) is doubled, the other variable must be the reciprocal of that (in this case 1/2, which is reciprocal of double).

What is the quality of the thing / money that doubles ?

Description : What is the quality of the thing / money that doubles ?

Last Answer : The answer is the mirror. Hold the money in front of the mirror and you will see that it has doubled.

What will happen if the diameter of the circle doubles how will the circumference change?

Description : What will happen if the diameter of the circle doubles how will the circumference change?

Last Answer : The circumference also doubles.

Why does kinetic energy quadruple if speed doubles?

Description : Why does kinetic energy quadruple if speed doubles?

Last Answer : Work (which is a type of energy transfer) = force xdistance.Look at the formulae for acceleration. The relevantformula in this case (simplified for the case that the initialspeed is zero) is:Distance = (1/ ... also increase by a factor four.Or in general, it will scale with the square of the speed.

Why does kinetic energy quadruple if speed doubles?

Description : Why does kinetic energy quadruple if speed doubles?

Last Answer : Work (which is a type of energy transfer) = force xdistance.Look at the formulae for acceleration. The relevantformula in this case (simplified for the case that the initialspeed is zero) is:Distance = (1/ ... also increase by a factor four.Or in general, it will scale with the square of the speed.

How many triple doubles does Lebron James have?

Description : How many triple doubles does Lebron James have?

Last Answer : LeBron James recorded his 19th regular season triple double, and 22nd overall on January 13th against the Memphis Grizzlies (30points, 11rebounds, and 10 assists)

Two cubic meters of a gas at 30 degrees Kelvin are heated at a constant pressure until the volume doubles. What is the final temperature of the gas?

Description : Two cubic meters of a gas at 30 degrees Kelvin are heated at a constant pressure until the volume doubles. What is the final temperature of the gas?

Last Answer : 60

An increase of 10 K in temp. rarely doubles the kinetic energy of particles but doubles the rate of reaction, why?

Description : An increase of 10 K in temp. rarely doubles the kinetic energy of particles but doubles the rate of reaction, why?

Last Answer : When temp. is increased 10 K , kinetic energy of molecules increases, no. of molecules possessing activation energy become double, therefore no. of effective collision doubles hence rate of reaction.

As frequency increases, the period ________. A) decreases B) increases C) remains the same D) doubles

Description : As frequency increases, the period ________. A) decreases B) increases C) remains the same D) doubles

Last Answer : decreases

In ‘S’ phase of the cell cycle (a) amount of DNA doubles in each cell (b) amount of DNA remains same in each cell (c) chromosome number is increased (d) amount of DNA is reduced to half in each cell.

Description : In ‘S’ phase of the cell cycle (a) amount of DNA doubles in each cell (b) amount of DNA remains same in each cell (c) chromosome number is increased (d) amount of DNA is reduced to half in each cell.

Last Answer : (a) amount of DNA doubles in each cell

Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. (A) Coal ash (B) Potassium cyanide (C) Ortho-xylene (D) None of these

Description : Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. (A) Coal ash (B) Potassium cyanide (C) Ortho-xylene (D) None of these

Last Answer : (B) Potassium cyanide

What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? (A) 0 (B) 1 (C) 2 (D) 3

Description : What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction? (A) 0 (B) 1 (C) 2 (D) 3

Last Answer : (A) 0

For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times. (A) 8 (B) 12 (C) 16 (D) 32

Description : For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times. (A) 8 (B) 12 (C) 16 (D) 32

Last Answer : (C) 16

What is the order of chemical reaction as shown in the bellow figure, if it is found that the reaction rate doubles on doubling the concentration of B and also the reaction rate doubles when the concentrations of both A & B were doubled and quadrupled when the concentrations of both B & C were doubled? (A) 1 (B) 2 (C) 3 (D) 4

Description : What is the order of chemical reaction as shown in the bellow figure, if it is found that the reaction rate doubles on doubling the concentration of B and also the reaction rate doubles when the concentrations of both A & B ... the concentrations of both B & C were doubled? (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : (B) 2

The Indian Badminton player who won the Canadian Open Women's Doubles title in 2015 along with Ashwini Ponnappa was

Description : The Indian Badminton player who won the Canadian Open Women's Doubles title in 2015 along with Ashwini Ponnappa was

Last Answer : Jwala Gutta

___________ became the most successful Doubles player in the history of Davis Cup as on 2018

Description : ___________ became the most successful Doubles player in the history of Davis Cup as on 2018

Last Answer : Leander Paes

If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its original temperature, the pressure:  a. doubles  b. halves  c. quadruples  d. triples

Description : If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its original temperature, the pressure:  a. doubles  b. halves  c. quadruples  d. triples

Last Answer : quadruples

If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory) a. doubles b. remains unchanged c. halves d. increases by 2^(address bits)/addressability

Description : If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory) a. doubles b. remains unchanged c. halves d. increases by 2^(address bits)/addressability

Last Answer : c. halves

Boldnew, the maker of a highly innovative light bulb, finds that it has excess stocks. The firm increases its advertising budget by 50 per cent and doubles its sales staff. This company is operating as if it were operating which of the A)production B)sales C)marketing D)social

Description : Boldnew, the maker of a highly innovative light bulb, finds that it has excess stocks. The firm increases its advertising budget by 50 per cent and doubles its sales staff. This company is operating as if it were operating which of the A)production B)sales C)marketing D)social

Last Answer : B)sales

Which of the following is TRUE of a sample of gas at a constant temperature when the pressure is doubled? w)the volume doubles x)the volume halves y)the volume remains the same

Description : Which of the following is TRUE of a sample of gas at a constant temperature when the pressure is doubled? w)the volume doubles x)the volume halves y)the volume remains the same

Last Answer : ANSWER: X -- THE VOLUME HALVES

If the resistance total in a series circuit doubles, current will:

Last Answer : If the resistance total in a series circuit doubles, current will: be halved